MurAll (PAINT) at $0.00399200 in your link above, having a marketcap of $38,384,559, also having a circulatory supply. This makes me think NFT can also work on trading the way normal coins are working, which means I can buy NFT or sell for trading purpose in which the price may increase or decrease depending on demand and supply?

Christie's sell an NFT by digital artist Beeple for $69m recently, this sound like those Mona Lisa painted by though non fungible, this kind of NFT are not for such trading purpose like MurAll (PAINT)?

Which best article can I know the A-Z of NFT? Never mind my question if not correct, I do not know much about NFT.